CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 661,925	$ 478,480
Money market investments:
Time deposits with other financial institutions	300	300
Other short-term investments	939	1,725
Total money market investments	1,239	2,025
Available-for-sale debt securities, at fair value:
Securities pledged with creditors' rights to repledge	0	81,103
Other available-for-sale debt securities	5,229,984	5,518,417
Total available-for-sale debt securities, at fair value (amortized cost of $5,863,294 as of December 31, 2023, and $6,398,197 as of December 31, 2022; allowance for credit losses (ACL) of $511 as of December 31, 2023 and $458 as of December 31, 2022)	5,229,984	5,599,520
Held-to-maturity debt securities, at amortized cost, net of ACL of $2,197 as of December 31, 2023 and $8,286 as of December 31, 2022 (fair value of $346,132 as of December 31, 2023 and $427,115 as of December 31, 2022)	351,981	429,251
Equity securities	49,675	55,289
Total investment securities	5,631,640	6,084,060
Loans, net of ACL of $261,843 as of December 31, 2023 and $260,464 as of December 31, 2022	11,923,640	11,292,361
Mortgage loans held for sale, at lower of cost or market	7,368	12,306
Total loans, net	11,931,008	11,304,667
Accrued interest receivable on loans and investments	77,716	69,730
Premises and equipment, net	142,016	142,935
Other real estate owned ("OREO")	32,669	31,641
Deferred tax asset, net	150,127	155,584
Goodwill	38,611	38,611
Other intangible assets	13,383	21,118
Other assets	229,215	305,633
Total assets	18,909,549	18,634,484
LIABILITIES
Non-interest-bearing deposits	5,404,121	6,112,884
Interest-bearing deposits	11,151,864	10,030,583
Total deposits	16,555,985	16,143,467
Short-term securities sold under agreements to repurchase	0	75,133
Advances from the Federal Home Loan Bank ("FHLB")	500,000	675,000
Other long-term borrowings	161,700	183,762
Accounts payable and other liabilities	194,255	231,582
Total liabilities	17,411,940	17,308,944
Commitments and contingencies (See Note 29)
STOCKHOLDERS' EQUITY
Common stock, $0.10 par value, 2,000,000,000 shares authorized; 223,663,116 shares issued; 169,302,812 shares outstanding as of December 31, 2023 and 182,709,059 as of December 31, 2022	22,366	22,366
Additional paid-in capital	965,707	970,722
Retained earnings, includes legal surplus reserve of $199,576 as of December 31, 2023 and $168,484 as of December 31, 2022	1,846,112	1,644,209
Treasury stock (at cost), 54,360,304 shares as of December 31, 2023 and 40,954,057 shares as of December 31, 2022	(697,406)	(506,979)
Accumulated other comprehensive loss, net of tax of $8,581 as of December 31, 2023 and $8,468 as of December 31, 2022	(639,170)	(804,778)
Total stockholders' equity	1,497,609	1,325,540
Total liabilities and stockholders' equity	18,909,549	18,634,484
Short-term Debt [Member]
LIABILITIES
Short-term securities sold under agreements to repurchase	0	75,133
Advances from the Federal Home Loan Bank ("FHLB")	0	475,000
Long-term Debt [Member]
LIABILITIES
Advances from the Federal Home Loan Bank ("FHLB")	$ 500,000	$ 200,000